Because a new federal safety regulation says that firefighters must have a clear view of how much air is left in their self-contained breathing apparatus (SCBA), LEDs are being used to illuminate the indicator. The LEDs are easy to see through smoke and also function as a warning system to other firefighters. When operating normally, the LEDs give off a blue-green light; if assistance is necessary, the LEDs give off a yellow color. The series of LEDs selected for this task use a low amount of power, which means fewer battery replacements. For more information, go to the following website: www.ledtronics.com.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.